This may sound difficult, but it is actually very easy to create a product. Think about what the people on your list really want from you. My people usually want me to explain some aspect of technology to them. I am able to create products by simply recording a video of me explaining how to do whatever they want to know.
For example, when my list asked me to explain how to publish an eBook on Kindle, my webmaster and I created a one hour video on how to do that, showing the step by step details. This product now sells for $27 on my main blog. I also did a 90 minute recording of how to get started with affiliate marketing. I sell that for $20, and a short report is also included.
Find out what your list wants from you, and then create a product quickly to sell to them. You may decide to do an audio recording, a video, or write a short report. Each product you create helps you to build your online business while you are still learning, and make money in the process.